using System;
using static System.Console;
using System.Linq;
using System.Collections.Generic;

class Program
{
    static int NN => int.Parse(ReadLine());
    static int[] NList => ReadLine().Split().Select(int.Parse).ToArray();
    static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray();
    public static void Main()
    {
        Solve();
    }
    static void Solve()
    {
        var c = NList;
        var (n, w, d) = (c[0], c[1], c[2]);
        var map = NArr(n);

        var dp0 = Enumerable.Repeat(long.MinValue, w + 1).ToArray();
        dp0[0] = 0;
        var dp1 = (long[]) dp0.Clone();
        for (var i = 0; i < n; ++i)
        {
            if (map[i][0] == 0)
            {
                var ndp = (long[]) dp0.Clone();
                for (var j = w; j >= 0; --j) if (j + map[i][1] <= w) ndp[j + map[i][1]] = Math.Max(ndp[j + map[i][1]], dp0[j] + map[i][2]);
                dp0 = ndp;
            }
            else
            {
                var ndp = (long[]) dp1.Clone();
                for (var j = 2; j >= 0; --j) if (j + map[i][1] <= w) ndp[j + map[i][1]] = Math.Max(ndp[j + map[i][1]], dp1[j] + map[i][2]);
                dp1 = ndp;
            }
        }
        var ans = 0L;
        for (var i = 0; i < dp0.Length; ++i)
        {
            var min = Math.Max(0, i - d);
            var max = Math.Min(w - i, i + d);
            if (min <= max) ans = Math.Max(ans, dp0[i] + dp1[max]);
        }
        WriteLine(ans);
    }
}